Home / 12,480.23-18,723.51-3,715.22

Finding the Fourth Proportional to 12,480.23, 18,723.51 and 3,715.22

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Solution

The fourth proportional to 12,480.23, 18,723.51 and 3,715.22 is: 5,573.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.23 : 18,723.51 = 3,715.22 : x
  2. Step 2: Convert to fraction form
    12,480.23/18,723.51 = 3,715.22/x
  3. Step 3: Cross multiply
    12,480.23x = 18,723.51 × 3,715.22
  4. Step 4: Simplify right side
    12,480.23x = 69,561,865.20
  5. Step 5: Solve for x
    x = 69,561,865.20/12,480.23
  6. Step 6: Final answer
    x = 5,573.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.